I know that it’s in the works to have JavaScript graphs using d3 or some similar technology, and I also know that you currently use matplotlib to do batch creation of them. Have you seen http://mpld3.github.io/ as a possible solution to allow you to implement this more easily/quickly?

And thanks for the pointer to MPLD3. It looks really nice and @saranli actually got a proof of concept working months ago. There’s a lot of kludgey things we’ve done with getting the axes and the different layers to display just right so it’s easier said than done to make it not be hideous. But it does work in principle and you’re right that this could be an easy path to javascript graphs.